Home / 80,357.20-120,530.97-35,972.03

Finding the Fourth Proportional to 80,357.20, 120,530.97 and 35,972.03

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Solution

The fourth proportional to 80,357.20, 120,530.97 and 35,972.03 is: 53,955.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,357.20 : 120,530.97 = 35,972.03 : x
  2. Step 2: Convert to fraction form
    80,357.20/120,530.97 = 35,972.03/x
  3. Step 3: Cross multiply
    80,357.20x = 120,530.97 × 35,972.03
  4. Step 4: Simplify right side
    80,357.20x = 4,335,743,970.10
  5. Step 5: Solve for x
    x = 4,335,743,970.10/80,357.20
  6. Step 6: Final answer
    x = 53,955.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.